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MHT CET2019Morning ShiftChemistryGeneral Principles and Processes of Isolation of MetalsActual

Which of the following is not the mineral of iron?

Options

  1. ALimonite
  2. BMagnetite
  3. CCorundum
  4. DHaematite

Correct answer

C. Corundum

Step-by-step solution

Key Idea Corundum is not a mineral of iron. It is a crystalline form of aluminium oxide typically containing traces of Fe, Ti, V and Cr. Limonite, magnetite and haematite are minerals of iron. Name and molecular formula of given minerals is given below: Name Mineral Limonite F e O H . n H 2 O Magnetite F e 3 O 4 Corundum A l 2 O 3 Haematite F e 2 O 3

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